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      1 /*
      2  * ATM Lan Emulation Daemon driver interface
      3  *
      4  * Marko Kiiskila <mkiiskila (at) yahoo.com>
      5  */
      6 
      7 #ifndef _ATMLEC_H_
      8 #define _ATMLEC_H_
      9 
     10 #include <linux/atmapi.h>
     11 #include <linux/atmioc.h>
     12 #include <linux/atm.h>
     13 #include <linux/if_ether.h>
     14 #include <linux/types.h>
     15 
     16 /* ATM lec daemon control socket */
     17 #define ATMLEC_CTRL	_IO('a', ATMIOC_LANE)
     18 #define ATMLEC_DATA	_IO('a', ATMIOC_LANE+1)
     19 #define ATMLEC_MCAST	_IO('a', ATMIOC_LANE+2)
     20 
     21 /* Maximum number of LEC interfaces (tweakable) */
     22 #define MAX_LEC_ITF 48
     23 
     24 typedef enum {
     25 	l_set_mac_addr,
     26 	l_del_mac_addr,
     27 	l_svc_setup,
     28 	l_addr_delete,
     29 	l_topology_change,
     30 	l_flush_complete,
     31 	l_arp_update,
     32 	l_narp_req,		/* LANE2 mandates the use of this */
     33 	l_config,
     34 	l_flush_tran_id,
     35 	l_set_lecid,
     36 	l_arp_xmt,
     37 	l_rdesc_arp_xmt,
     38 	l_associate_req,
     39 	l_should_bridge		/* should we bridge this MAC? */
     40 } atmlec_msg_type;
     41 
     42 #define ATMLEC_MSG_TYPE_MAX l_should_bridge
     43 
     44 struct atmlec_config_msg {
     45 	unsigned int maximum_unknown_frame_count;
     46 	unsigned int max_unknown_frame_time;
     47 	unsigned short max_retry_count;
     48 	unsigned int aging_time;
     49 	unsigned int forward_delay_time;
     50 	unsigned int arp_response_time;
     51 	unsigned int flush_timeout;
     52 	unsigned int path_switching_delay;
     53 	unsigned int lane_version;	/* LANE2: 1 for LANEv1, 2 for LANEv2 */
     54 	int mtu;
     55 	int is_proxy;
     56 };
     57 
     58 struct atmlec_msg {
     59 	atmlec_msg_type type;
     60 	int sizeoftlvs;		/* LANE2: if != 0, tlvs follow */
     61 	union {
     62 		struct {
     63 			unsigned char mac_addr[ETH_ALEN];
     64 			unsigned char atm_addr[ATM_ESA_LEN];
     65 			unsigned int flag;	/*
     66 						 * Topology_change flag,
     67 						 * remoteflag, permanent flag,
     68 						 * lecid, transaction id
     69 						 */
     70 			unsigned int targetless_le_arp;	/* LANE2 */
     71 			unsigned int no_source_le_narp;	/* LANE2 */
     72 		} normal;
     73 		struct atmlec_config_msg config;
     74 		struct {
     75 			__u16 lec_id;				/* requestor lec_id  */
     76 			__u32 tran_id;				/* transaction id    */
     77 			unsigned char mac_addr[ETH_ALEN];	/* dst mac addr      */
     78 			unsigned char atm_addr[ATM_ESA_LEN];	/* reqestor ATM addr */
     79 		} proxy;	/*
     80 				 * For mapping LE_ARP requests to responses. Filled by
     81 				 * zeppelin, returned by kernel. Used only when proxying
     82 				 */
     83 	} content;
     84 } __ATM_API_ALIGN;
     85 
     86 struct atmlec_ioc {
     87 	int dev_num;
     88 	unsigned char atm_addr[ATM_ESA_LEN];
     89 	unsigned char receive;	/* 1= receive vcc, 0 = send vcc */
     90 };
     91 #endif /* _ATMLEC_H_ */
     92